feat: SSE (Server-Sent Events) support for n8n integration

- Added SSE server implementation for real-time event streaming
- Created n8n compatibility mode with strict schema validation
- Implemented session management for concurrent connections
- Added comprehensive SSE documentation and examples
- Enhanced MCP tools with async execution support
- Added Docker Compose configuration for SSE deployment
- Included test scripts and integration tests

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "n8n-mcp",
-  "version": "2.7.10",
+  "version": "2.8.0",
   "description": "Integration between n8n workflow automation and Model Context Protocol (MCP)",
   "main": "dist/index.js",
   "bin": {
@@ -15,9 +15,12 @@
     "start": "node dist/mcp/index.js",
     "start:http": "MCP_MODE=http node dist/mcp/index.js",
     "start:http:fixed": "MCP_MODE=http USE_FIXED_HTTP=true node dist/mcp/index.js",
+    "start:sse": "MCP_MODE=sse node dist/mcp/index.js",
     "http": "npm run build && npm run start:http:fixed",
+    "sse": "npm run build && npm run start:sse",
     "dev": "npm run build && npm run rebuild && npm run validate",
     "dev:http": "MCP_MODE=http nodemon --watch src --ext ts --exec 'npm run build && npm run start:http'",
+    "dev:sse": "MCP_MODE=sse nodemon --watch src --ext ts --exec 'npm run build && node dist/mcp/index.js'",
     "test:single-session": "./scripts/test-single-session.sh",
     "test": "jest",
     "lint": "tsc --noEmit",
@@ -42,6 +45,10 @@
     "test:mcp:update-partial": "node dist/scripts/test-mcp-n8n-update-partial.js",
     "test:update-partial:debug": "node dist/scripts/test-update-partial-debug.js",
     "test:auth-logging": "tsx scripts/test-auth-logging.ts",
+    "test:sse": "npm run build && jest tests/sse-*.test.ts --passWithNoTests",
+    "test:sse:manual": "npm run build && npx ts-node tests/test-sse-endpoints.ts",
+    "test:sse:integration": "npm run build && jest tests/sse-integration.test.ts --passWithNoTests",
+    "test:sse:unit": "npm run build && jest tests/sse-session-manager.test.ts --passWithNoTests",
     "sanitize:templates": "node dist/scripts/sanitize-templates.js",
     "db:rebuild": "node dist/scripts/rebuild-database.js",
     "db:init": "node -e \"new (require('./dist/services/sqlite-storage-service').SQLiteStorageService)(); console.log('Database initialized')\"",